Vaporizing apparatus



May 12, 1942.

W. G. BAILEY VAPORIZING APPARATUS Fi led March 30, 1940 \\i Ni? w. wr wt Sil /Z Ii; v SI2 l ,Z477 d 72'2071 Zzrre? ZazZey,

Patented May 12, 1942 vAPoaIzING APPAaATUs Warren G. Bailey, Evanston,-Ill.,assignorto0fv `Cedar Corpn, Chicago; Ill., a corporation of Illinois Application March 30, 1940,'Serial No. 326,948

5 Claims. This invention relates to vaporizing apparatus,

and more particularly to a device for controlling the outflow of vapors used for inhibitingor destroying moths or other insects.

An object of the invention is to provide apparatus in the form of a lled container which permits a steady or controlled outflow of vapors while at the same timepresenting an evaporating surface which does not tend to moisten or wet clothing or garments in the closet or compartment in which the apparatus is placed. Another object is to provide a container equipped with means for evenly supplying a vaporizing uid to a closure for the container, the closure presenting a substantially non-moistening surface and provided with means for producing substantial saturation of the air adjacent the closure. Other specic objects and advantages will appear as the specification proceeds.

The invention is illustrated in a preferred embodiment by the accompanying drawing, in which- Figure 1 is a vertical sectional view of apparatus embodying my invention, the section being taken as indicated at line I of Fig. 2; and Fig 2, a toprplan view. Y

In the illustration given, A ldesignates a container; and B, a vaporizing closure.

The container A may consist of `a glass bottle or container of any other suitable material equipped with a neck I0.

The member B is preferably in the form of .a cone and consists of wood or other suitable liquid-permeable material which will permit the highly volatile liquidV employed to permeate therethrough. The cone is provided with a central passage Il adapted to receive the wick I2.` Any suitableliquid permeable material may be` employed. For example, cedar wood or some like wood which permits the liquid `to pass therethrough is satisfactory. The cone B is provided with a plurality of annular slots I3 which serve the purpose of bringing air into close contact with the fumes being evaporated, and the further purpose of conning the liquid as far as possible between the slots rather than having it present on the outer portion of the cone in such quantities as to provide a moist surface. In actual operation, the cone does not seem to wet or moisten a garment, even when brought into contact with it. Most of the saturation of the air is eiected by the circulation of air within the annular slots I3.

The annular slots I3 are arranged in the cone so that the inner peripheral walls or surfaces I4 K months before the supply of Vliquid is exhausted.`

of the slots are spaced from the central vertical passage in the cone by distances which progressively decrease as the-height of the slots in the cone increases. 'aIhus the inner peripheral wall I4a is arranged closely adjacent the vertical passage I I while the inner peripheral wall |417 at the lower portion of the cone is spacedfrom the passage by a much greater distance. Each of the slots extends all of the way around the cone and encloses the vertical passage I I. In eachslot the inner peripheralvwall is circular in shape and is disposed concentrically with respect to the vertical passage Il'. Accordingly, in each slot lall of the portions fof the inner peripheral wall are spaced 4approximately. equidistantly from the: central passage Il in the cone." The cone Bis provided with a stopper portion I4 which extends intothe bottle neck I0 to forml a close seal therewith. Should the cone and container be knocked over within a compartment, 1

the-liquid is prevented from spilling by the :close fitting stopper I4. If desired,"the stopper I4 may be equipped with threads for interlocking with a threaded bottle neck.V However, with most woods, 'an effective tight. seal is accomplished without the use of threads.

The new apparatus is found to be very effective in ridding a closet or compartment of moths for'long periods of time. Thev porosity ofthe wood which is correlated with the. vaporizing liquid employed so as to produce a steady vapor-A ization which may extend over weeks and even If a highly porous wood or other type of cone is employed, the liquid'need not befas volatile in character as where a more dense wood or other type of material is` employed. It is relativelyv easy to nd aproper correlation between the porosity of the cone and the volatility of the liquid employed so as to provide a control over vaporization.

Operation In the operationof the apparatus, the container A is filled with the liquid which is designed to inhibit or destroy moths or other insects. The cone'B equipped with the wick I2 is then placed in position with the stopper I4 firmly and securely sealing the neck I 0. The apparatus is then placed within a compartment or closet which it is desired to rid of moths, etc.

The liquid is conveyed uniformly by the Wick I2 into the central portion of the cone B and thence flows outwardly from the passage II into the slots I3. The main portion of the liquid to the liquid is prevented from spilling by the tight closure I4. The apparatus may thus be used without danger of injuring garments within a compartment or closet for weeks at a time without the necessity of replenishing the container A. The fumes or vapors keep the closet or comfpartment completely mothproof, or, if it is, desired to rid the compartment of other insects, other suitable liquids may be employed in the same manner for this purpose.

By reason of the arrangement within the cone wherein the distances between the inner peripheral walls of the slots and the central vertical passage decrease as the height ofthe slots in the cone increases, the tendency of the cone to deliver a greater amount of liquid to the lower slots will be neutralized. In other words, as the liquid passes upwardly in the wick in the vertical passage, a greater amount of liquid will naturally be available to the wood adjacent the lower slots than that adjacent the upper slots. However,

The cone construction provides in effect a.

series of set backs for the slots. The lower portions of the cone project laterally from the passage a greater distance than d-o the upper portions of the cone. The air passing from the slots and containing the vapor may thus pass upwardly from the outer edge of the lower slots without interfering with the evaporation from the upper slots. In this way, a greater circulation of the vapor carrying air is providedY than would be I possible if the cone construction were not used.

While in the foregoing specification, I have set forth a partial list of the advantages ofthe apparatus, it will be obvious that there are many additional advantages which for the purpose of this specification need not be expressed, and while I have in the foregoing description set forth specinc details of construction, it will be understood that such details are for the purpose of illustration and that they may be varied widely by those skilled in the art without departing from the spirit of my invention.

I claim:

1. Vaporizing apparatus of the character set forthl comprising a liquid container having an opening atone end, a closure for said opening, said closure providing an upwardly extending provided with a plurality of horizontal annular slots space-d apart, said cone and closure being centrally apertured, and a wick having one end extending into said aperture and the other end extending into said container.

3. In combination, a container equipped with a neck, a vaporizing member provided with an integral depending stopper portion engaging and sealing said neck and with an upwardly extending cone portion, said stopper and cone portion beingl provided' with a .central passage terminating short of the top of said cone, said cone being provided Awith la plurality of annular slotsv spaced from each other, each of the slots being provided with an inner peripheral wall extending about said central passage with each inner peripheral wall being spaced approximately equidistantly from the passage at all portions thereof and a wick having one end extending into the 'aperture of said stopper and cone and the other end extending into said container, said wick being adapted to convey a volatile liquid from said container to the aperture within said cone.

4. In combination, a container equipped with a neck, a porous wood body having a depending stopper portion adapted to be received within said neck and anintegral upwardly extending body portion of the general shape of a cone, a plurality of horizontal annular slots extending about said cone in spaced relation, said cone and stopper being provided with a central vertical passage therein, the inner peripheral walls of successively higher slots in said conebeing spaced from said passage by progressively smaller distances and a wick having one end extending into said aperture and the other into the interior of said container.

5. In combination, a container equipped with a neck, a porous wood body having a stopper portion adapted to be received within said neck, and an integral upwardly extending body portion of the general shape of a cone, said cone having a plurality of horizontal'annular slots extending about the cone in spaced relation, the inne-r peripheral walls of successively higher slots in said cone being spaced from said passage by progressively smaller distances, and said stopper portion of said porous wood'bodybeing provided with an integral extension adapted to enter the liquid within thev container to convey the same to the,

passage in the cone, the inner peripheral wall of each of said slots being substantially circular and concentrically disposed with respect to said passage whereby all portions of the surface of any wall are spaced approximately equidistantly from the passage.

WARREN G. BAILEY. 

